9/28 Write a program to swap the values of two variables

Question

Write a program to swap the values of two variables. The program will ask the user to input variables x and y with numerical values. You must write code that exchanges their values: the value of x after your code runs must equal the value that y had before your code ran, and the value of y after your code runs must equal the value that x had before your code ran.

寫一個交換兩個變數的程式

Example input:

3
5

Example output:

5
3

Remember: Your output may be 100% correct, but your code matters!

Comments

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Answer 1

Hidden content!
#include<stdio.h>

int main()
{
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** * *  ** *** ******** ***    **  0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 2

Hidden content!
#include <stdio.h>
int main()
{
    * *** ****  ****  * **   ** first_number;
* * *  **      * * ***    *  * **** second_number;
***  *        ***  ** ** * ****  swap;

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 ****  * ** **   ** *** *    0;

}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 3

Hidden content!
#include<stdio.h>
int main(){
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return 0;}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

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Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 4

Hidden content!
#include<stdio.h>
int main()
{
int a,b;
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return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 5

Hidden content!
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* * * ***      *  *** x ** y     * *     *  **  * ******


*   0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 6

Hidden content!
  **  *  ** * **   
int  ** *   
{
 ** * * **    **  a,b,swap;
   * * ** *   *   **  **** * **
** ** **   * *      ***  * * 
swap=a;
a=b;
b=swap;
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  *  ** *       * ***   * 
** ** *  *   *  ** **  0 ;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 7

Hidden content!
* * *        * ***
main()
{
 ** ****  ** **    *** * *
  *     ** **** *** * *  *   
** * ** ****  * **  ** *
swap=a;
a=b;
b=swap;
***   * ** *      *  a);
** *  ** **    ** * *  
 *   **   ***   *  0 ;
}

Comments

prog.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~

Answer 8

Hidden content!
** ** * ****   *  *   
 int main(){
int a,b;

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return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 9

Hidden content!
 * **  ** * ** * **** 
******  *  main(){
int a,b;

 *  ** * *  ** ** ***  * *  **      * *** * * ***** **  * * ****   

   ****  ** * **  *** **  * *    ** ** * * *  * * ** *

return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 10

Hidden content!
#include <stdio.h>

int main(){
*  * *  **    **** * * *** *
* * ** *   **  ****  *  ** *  x,y,temp;
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*** **** *     **    ** ***** **    *** * *******      
    
***  ***  *** ******** **** = x;
*  ***  *     *   **    *  * * = y;
 * *  * ***  *  ** *    ****** = temp;
  *  ** *  *   ** ****
   * ******    *  ** **   **** ***   ***      **** x,y);
**       *  * *     **  **  *** 
*    **  * ** ***** ***   0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output